|
Pension and Other Postretirement Benefits Narrative (Details) (USD $)
|
3 Months Ended | 6 Months Ended |
|---|---|---|
|
Jan. 31, 2015
|
Jan. 31, 2015
|
|
| Pension Plan | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans | ||
| Employer contributions | $ 350,000 | $ 581,000 |
| Estimated contributions in remainder of current fiscal year | $ 1,276,000 | |
| Postretirement Health Plan | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans | ||
| Medical Cost Trend Assumption | 7.50% | |
| Ultimate Health Care Cost Trend Rate | 5.00% | |
| Year that Rate Reaches Ultimate Trend Rate | 2024 | 2024 |